The reason clean energy is hard to come by is that we've spent the past 150 years depending on oil, and it's quite difficult to make the switch. Here "difficult to make the switch" is related to

A Replacing analogue oil with digital fluid
B manufacturing
C inventing
D controlling

Correct Answer: Replacing analogue oil with digital fluid

Bissoy MCQ

Related Questions

it is quite objectionable, here quite is-
He works hard . Here 'hard' is a/an
He can work hard. Here hard is used as ___
My father works hard. Here the word 'hard' is a /an

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